Coil-spring-compressing device



J. FORD COIL SPRING COMPRESSING DEVICE Filed March 2, 1925 9 8 6 H v {5 0 2- 4 P 8 9 4 I I INVENTORQ JAMES. FORD i w g ATTORNEY Patented July 19 26 r I A SFQ 01 Los Amm's -cspmbs V Y .1 coin-srni ve comrnsssine Davie-11; I

Application fi1ean rh 2, a25. Serial 12,155.;

"This invention has relation morespecifically to a device for compressing coiled valve springs of explos'iveenginesY l In regrinding the" intake exhaust valves of explosive engines, and jrefacing" their seats, it is necessary; to remove the: coiled compressing springs. After the'valves have been reground and the seats'refaced:

the springs have to be compressedin order to again mount the same onthe valve stems.

This spring compressing operation not only i v invol vestheexpenditure of considerabletin'ie on the part of the mechanic, but oftentimes bends the valve stems if thes'ame 'arecom'f pressed thereon. j

By means of myspring compressing de-' 7 Vice coiled valve springs maybe quickly compressed to the desiredextent, andheld by retainers in such condition until the same are properly seated and secured on'thevalve stems, thus notonly effecting a considerable,

saving in time on the'part of the mechanic, 'butobviatingfallj'danger' of bending the ing their adjustment.

valve stems, and rende a comparatively simple operation;

It is thereforeja main object of this tion toprovide a simple'device' that may be,

instantly clamped to a suitable support, hav- ,7 fthereto for quickly,

ing means connected compressing coiled springs to "the desirediextent, and means for holding the springs intheir compressed condition until-reassembled tive of the invention, of which obviously an embodiment may be constructed including many minor modifications without departlng from the general scope herein indicated and hereinafter claimed I .Other objects and advantages of this invention, not at this.timetparticularly enumerated, will be clearlyunderstood from the following detailed description of the present hereto attached, in which invention, in connection With the drawings Fig. l is a side elevation of the device partly in section, showing the same clamped to assupport, a coiled spring being mounted thereon in itsnormal condition. 7 Fig. 2 is a partial side elevation partly in understood from the following The mechanic who 1s engaged in repairing 1 retainers in place thereon. 7 Fig-.3 is a planvie w of thedevice clamped toa. suppornthespr ng compressing rod be-:

ing-incross section. a v Fig. 4 i a side elevat on of. a colled valve spring a compressed-condition;, and-the spring retaining members s forholdingthesa me in such condition,

ii i e i s new rwpe fil Hy 5 f 5 deslgnatesa.clampinglinember' drawings,-

preferably. consisting. of horizontally disposed flat clamping members 6,"7, .having the sectienofthe deviceshewing aieoiled spfing e th retq,

in fa'compressed icondition,.with the spring usual adjusting screws 8,9,for clampingthe Q deviee securely to a stationfary supportf10.; The outer end of clamping member/Z is pro -5;

v d ,-ivi li an ju tin r ser w -1 t end ther e b r n :a r s al .d rmed%nnth upp r face ofclamp member 6,,wfhreby to; 1

adjust ,the'fupper clamping *member. in rela: tion to the lower; clampingnnember, and to. effectively secure the clamp against. movemenu; r

' Glampingmemberfi, is'off greaterlen'gth than the flipper ,inember @in, order, to ;pr0,,

vide spacefor anfu-pstanding lug 13, formed 7 V V 1 integral withthe; lower f clamp member at w the" enter end; thereof. 'Tl1'i's lug isf' provided; I

.os db r d t W hjla ve s llyt i pr s ed, 5 du ed n di meter. to; form w a. seat radialfslot 16that opens into bore 14 of the s .q fthes e wk itl sp ing at? 1 member l5, o f a valve,- -Q1amp memberjd atits outer rounded end is providedwith a lug 13, and pi'votally inountedinthe. slotis a lever 17, having a cam shaped serrated end 18 for'gripping the spring compressing rod 19, and holding the same in a depressed condition against the action of the spring, being compressed untilthe retaining membersare applied to the compressed spring, as will be more fully described further on. I

JTheoperation of the devicewill bereadily description.

the intake and exhaust valves of an explosivejengine of' the auto-vehicle type, first clamps the device. to a stationary-support 10, inthis instance thesupp'ort beingone of the running'boards of the vehicle whose valves are belng'repaired. The coiled valve springs are ClISCOIHIBCtGd' from the eng ne valves in the usual manner. After the valves have been repaired and adjusted, itbecomes necessary to' compress the various coiled springs befol'ethe valve mechanism can be reassembled;- spring 20,-tog'ether with apertu ed' emt member i'sqal aced 011 the upper fedued end of lug 13, and the vvalve compressing rod 19'pIfOVl; l- \y i-t=h; zi h'a ildle 22-on'the upper end thereof 1s"1nserted v throu hrtlle spring 'and bore-*l koftlie lfig and forced downwardly ggaiIi Sttlw 'QcQgI V of the spring, 'When the spr ng-fies been compressed to the deslre'd extent as ehotvn 52 1-5116 level "i s pushed-slightly 'ment with the shaft of the compressing rod 1 9m hold thespling in" ii compressed cofhdition. The o'pe'r'ator theh ipplies' akpzi ir ing hooked;

'c pntact-With the shaft of '10df1 9, to pe'ifmit offarmed onthe elaim-pirigmenibefs. The com the=spring-Ttainii1ge1 compresion.

order to provide for "difier'ent; degrees of whacldai g I VA i spri fl 'fi -pr s n' u fd vie comprising a Iiiembeihaving a bof'ed lug fen-nea on the enter 6 11 61 thereoffth uppier fetid 'o'f s'zi i'dfliigeolistittitiii'g 11 em fo sp'rmg, s'aj u v memb rpefi if! be s u e 1: 1 new we d me Spf i compressifig "member slid'l 'rig y mounted said lug and means mounted'on 'sa-id lug mem'her from ulSWafd "movement after; a sprlng compressmg operatlon. V V

1*2LAL-co'1'l'ed; sprin oompresslng devlce comprising horizontally disposed member e e tdtvpted to be 'se'c ur'ed to a support having an apertured s pring seat formed onlone end "thereof, spfifig compressing rod pa eei n g rough t ape ur .1 t .spr ng vs e niol'intedoh sitid'eitg and-means connected to s aid apertulje'd member holding the rod in its depressed position. v

31A; coiled epfing compressing device: V 2 fiat metal' jnelhber having 7 for ee'eiir in'g the isanjigito I a support,

' s efit' fofnied on the free end of compi'i lm e itfi .d e e said member ji 1" the reception of a co'il'ed rod aga inst an upward loifeniehtand to ;mmntaln fth'e sprmg Ifiounted on the apertured se'ati'n eompressim. V 1 I polled eprmgqfcomp'ressnig dev ce compriei g a p of clamping members and m 'e'nsjeli 3 ]1} .n ih am e s pp t an apertured Sp Iig Seat formed on one of the; in compression.

have T 6 1 i day tii'f February, 1925.

JAMES iiohb.

nest th I eleimthe foregoing I to subgribed m mme this 10th 

